I've got a bass that is hard to turn the truss rod when trying to straighten out the neck. When i first got the bass the action was really high, I tried adjusting the truss rod but it was very hard to turn so I just left it alone because this bass is a somewhat obscure model and I didn't want to tear anything up on it. What can I do to help loosen this truss rod up some? can I spray a little WD-40 down in there? any tips? Thanks so much! This is an awesome bass, the action is just too high and I'd love for this beauty to see some gig time.